AD1845 Analog Devices, AD1845 Datasheet - Page 24

• Manufacturer Part Number: AD1845
• Description: Parallel-port 16-Bit Soundport Stereo Codec
• Manufacturer: Analog Devices

LLG4:0
res
LLM
This register’s initial state after reset is “1xx0 1000.”
RLG4:0
res
RLM
This register’s initial state after reset is “1xx0 1000.”
AD1845
Left Line Gain, Attenuate, Mute Mix Register (IXA3:0 = 18)
Right Line Gain, Attenuate, Mute, Mix Register (IXA3:0 = 19)
IXA3:0
IXA3:0
18
19
Left Line Mix Gain. Allows setting the left line mix gain in thirty-two 1.5 dB steps. See Figure 10 for mix gain
level setting.
Reserved for future expansion. Always write zeros to these bits.
Left Line Mute. Setting this bit to 1 mutes the left line input into the output mixer.
Right Line Mix Gain. Allows setting the right line mix gain in thirty-two 1.5 dB steps. See Figure 10 for mix
gain level setting.
Reserved for future expansion. Always write zeros to these bits.
Right Line Mute. Setting this bit to 1 mutes the right line input into the output mixer.
A4/G4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Data 7
Data 7
RLM
LLM
Figure 10. Mix Gain Level Setting: AUX1, AUX2, MIC and LINE
A3/G3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Data 6
Data 6
res
res
Data 5
Data 5
A2/G2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
res
res
–24–
Data 4
Data 4
RLG4
LLG4
A1/G1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Data 3
Data 3
RLG3
LLG3
A0/G0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Data 2
Data 2
RLG2
LLG2
Mix Gain
+12.0 dB
+10.5 dB
–10.5 dB
–12.0 dB
–13.5 dB
–15.0 dB
–16.5 dB
–18.0 dB
–19.5 dB
–21.0 dB
–22.5 dB
–24.0 dB
–25.5 dB
–27.0 dB
–28.5 dB
–30.0 dB
–31.5 dB
–33.0 dB
–34.5 dB
+9.0 dB
+7.5 dB
+6.0 dB
+4.5 dB
+3.0 dB
+1.5 dB
+0.0 dB
–1.5 dB
–3.0 dB
–4.5 dB
–6.0 dB
–7.5 dB
–9.0 dB
Data 1
Data 1
RLG1
LLG1
Data 0
RLG0
Data 0
LLG0
REV. B